BAEL-5952-Java HttpClient - Map Json Response to Java Class (#13234)
* Java HttpClient - Map Json Response to Java Class * BAEL-5952-Java HttpClient - Map Json Response to Java Class * BAEL-5952-Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class * Java HttpClient - Map Json Response to Java Class
This commit is contained in:
Michael Olayemi
GitHub
parent
3b521d448f
commit
b5d8f4e93c
@ -14,6 +14,20 @@
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<version>1.0.0-SNAPSHOT</version>
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<relativePath>../../pom.xml</relativePath>
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</parent>
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<dependencies>
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<dependency>
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<groupId>com.google.code.gson</groupId>
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<artifactId>gson</artifactId>
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<version>${gson.version}</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
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<dependency>
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<groupId>com.fasterxml.jackson.core</groupId>
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<artifactId>jackson-databind</artifactId>
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<version>${jackson.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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@ -32,6 +46,8 @@
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<properties>
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<maven.compiler.source.version>11</maven.compiler.source.version>
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<maven.compiler.target.version>11</maven.compiler.target.version>
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<jackson.version>2.14.1</jackson.version>
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<gson.version>2.10</gson.version>
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</properties>
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</project>
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@ -0,0 +1,73 @@
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package com.baeldung.httppojo;
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import java.util.Objects;
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public class Todo {
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int userId;
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int id;
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String title;
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boolean completed;
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public Todo() {
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}
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public Todo(int userId, int id, String title, boolean completed) {
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this.userId = userId;
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this.id = id;
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this.title = title;
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this.completed = completed;
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}
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public int getUserId() {
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return userId;
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}
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public void setUserId(int userId) {
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this.userId = userId;
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}
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getTitle() {
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return title;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public boolean isCompleted() {
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return completed;
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}
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public void setCompleted(boolean completed) {
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this.completed = completed;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o)
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return true;
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if (o == null || getClass() != o.getClass())
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return false;
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Todo todo = (Todo) o;
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return userId == todo.userId && id == todo.id && completed == todo.completed && Objects.equals(title, todo.title);
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}
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@Override
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public int hashCode() {
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return Objects.hash(userId, id, title, completed);
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}
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@Override
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public String toString() {
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return "{" + "userId=" + userId + ", id=" + id + ", title='" + title + '\'' + ", completed=" + completed + '}';
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}
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}
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@ -0,0 +1,107 @@
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package com.baeldung.httppojo;
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import java.io.IOException;
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import java.net.URI;
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import java.net.http.HttpClient;
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import java.net.http.HttpRequest;
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import java.net.http.HttpResponse;
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import java.net.http.HttpResponse.BodyHandlers;
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import java.util.List;
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import java.util.concurrent.CompletionException;
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import com.fasterxml.jackson.core.type.TypeReference;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.google.gson.Gson;
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import com.google.gson.GsonBuilder;
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import com.google.gson.reflect.TypeToken;
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public class TodoAppClient {
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ObjectMapper objectMapper = new ObjectMapper();
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Gson gson = new GsonBuilder().create();
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public String sampleApiRequest() throws Exception {
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HttpClient client = HttpClient.newHttpClient();
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HttpRequest request = HttpRequest.newBuilder()
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.uri(URI.create("https://jsonplaceholder.typicode.com/todos"))
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.build();
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HttpResponse<String> response = client.send(request, BodyHandlers.ofString());
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return response.body();
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}
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public Todo syncGson() throws Exception {
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String response = sampleApiRequest();
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List<Todo> todo = gson.fromJson(response, new TypeToken<List<Todo>>() {
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}.getType());
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return todo.get(1);
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}
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public Todo syncJackson() throws Exception {
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String response = sampleApiRequest();
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Todo[] todo = objectMapper.readValue(response, Todo[].class);
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return todo[1];
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}
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public Todo asyncJackson() throws Exception {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(URI.create("https://jsonplaceholder.typicode.com/todos"))
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.build();
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TodoAppClient todoAppClient = new TodoAppClient();
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List<Todo> todo = HttpClient.newHttpClient()
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.sendAsync(request, BodyHandlers.ofString())
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.thenApply(HttpResponse::body)
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.thenApply(todoAppClient::readValueJackson)
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.get();
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return todo.get(1);
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}
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public Todo asyncGson() throws Exception {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(URI.create("https://jsonplaceholder.typicode.com/todos"))
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.build();
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TodoAppClient todoAppClient = new TodoAppClient();
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List<Todo> todo = HttpClient.newHttpClient()
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.sendAsync(request, BodyHandlers.ofString())
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.thenApply(HttpResponse::body)
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.thenApply(todoAppClient::readValueGson)
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.get();
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return todo.get(1);
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}
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List<Todo> readValueJackson(String content) {
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try {
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return objectMapper.readValue(content, new TypeReference<List<Todo>>() {
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});
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} catch (IOException ioe) {
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throw new CompletionException(ioe);
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}
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}
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List<Todo> readValueGson(String content) {
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return gson.fromJson(content, new TypeToken<List<Todo>>() {
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}.getType());
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}
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}
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@ -0,0 +1,45 @@
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package com.baeldung.httppojo;
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import static org.junit.Assert.*;
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import org.junit.Test;
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public class HttpClientPojoClassUnitTest {
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Todo expectedTodo = new Todo(1, 2, "quis ut nam facilis et officia qui", false);
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@Test
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public void givenSampleApiCall_whenResponseIsMappedByGson_thenCompareResponseMappedByGson() throws Exception {
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TodoAppClient sampleGson = new TodoAppClient();
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assertEquals(expectedTodo, sampleGson.syncGson());
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}
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@Test
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public void givenSampleApiCall_whenResponseIsMappedByJackson_thenCompareResponseMappedByJackson() throws Exception {
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TodoAppClient sampleJackson = new TodoAppClient();
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assertEquals(expectedTodo, sampleJackson.syncJackson());
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}
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@Test
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public void givenSampleRestApi_whenApiIsConsumedByHttpClient_thenCompareJsonString() throws Exception {
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TodoAppClient sampleTest = new TodoAppClient();
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assertNotNull(sampleTest.sampleApiRequest());
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}
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@Test
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public void givenSampleApiAsyncCall_whenResponseIsMappedByJackson_thenCompareResponseMappedByJackson() throws Exception {
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TodoAppClient sampleAsynJackson = new TodoAppClient();
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assertEquals(expectedTodo, sampleAsynJackson.asyncJackson());
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}
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@Test
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public void givenSampleApiAsyncCall_whenResponseIsMappedByGson_thenCompareResponseMappedByGson() throws Exception {
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TodoAppClient sampleAsynGson = new TodoAppClient();
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assertEquals(expectedTodo, sampleAsynGson.asyncGson());
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}
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}
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